LT3650EMSE-4.2#PBF - 

制造商：

LINEAR TECHNOLOGY LINEAR TECHNOLOGY

制造商产品编号：

LT3650EMSE-4.2#PBF

仓库库存编号：

2295368

技术数据表：

(EN)

The LT3650EMSE-4.2#PBF is a High Voltage 2A Monolithic 2-cell Li-ion Battery Charger operates over a 4.75 to 32V input voltage range (7.5V minimum start-up voltage). The LT3650 provides a constant-current/constant-voltage charge characteristic with maximum charge current externally programmable up to 2A, set using an external current sense resistor. A precondition feature trickle-charges a low voltage battery and bad-battery detection provides a signal and suspends charging if a battery does not respond to preconditioning. It can be configured to terminate charging when charge current falls to C/10 or one-tenth the programmed maximum current. Once charging is terminated, the LT3650 enters a low current (85μA) standby mode. An auto-restart feature starts a new charging cycle if the battery voltage drops 2.5% from the float voltage or if a new battery is inserted into a charging system. The LT3650 contains an user-programmable internal safety timer.

• Wide input voltage range (4.75 to 32V, 40V absolute maximum)
• Up to 2A programmable charge current
• User-selectable termination (C/10 or onboard termination timer)
• Dynamic charge rate programming/soft-start pin
• Programmable input current limit
• 1MHz Fixed frequency
• Average current mode control
• 0.5% Float voltage accuracy
• 5% Charge current accuracy
• 2.5% C/10 detection accuracy

• NTC resistor temperature monitor
• Auto-recharge at 97.5% float voltage
• Auto-precondition at <70% float voltage
• Bad battery detection with auto-reset
• Binary coded open-collector status pins